Climate and monthly weather forecast
Morris Plains, NJ

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Weather in January

January, the same as December, is another cold winter month in Morris Plains, New Jersey, with an average temperature varying between 22.5°F (-5.3°C) and 34.9°F (1.6°C). Morris Plains's coldest weather arrives in January, when temperatures average a high of 34.9°F (1.6°C) and a low of 22.5°F (-5.3°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Morris Plains, New Jersey, with an average temperature varying between 38.3°F (3.5°C) and 24.1°F (-4.4°C). As Morris Plains welcomes February, the average high-temperature stabilizes at a still wintry 38.3°F (3.5°C), showing little deviation from January's 34.9°F (1.6°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Morris Plains, New Jersey, with an average temperature varying between 46°F (7.8°C) and 31.5°F (-0.3°C). March introduces a marginal temperature uplift, with average high-temperatures adjusting from February's wintry 38.3°F (3.5°C) to a chilly 46°F (7.8°C). Weather in March »

Weather in April

April is a refreshing spring month in Morris Plains, New Jersey, with an average temperature ranging between min 41.7°F (5.4°C) and max 58.3°F (14.6°C). In Morris Plains, the onset of April comes with an increased average high-temperature, moving from March's chilly 46°F (7.8°C) to a refreshing 58.3°F (14.6°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Morris Plains, New Jersey, with an average temperature ranging between min 51.3°F (10.7°C) and max 68.9°F (20.5°C). Morris Plains sees a rise in temperature during May, with average high-temperatures transitioning from a refreshing 58.3°F (14.6°C) in April to a pleasant 68.9°F (20.5°C). Weather in May »

Weather in June

June, the first month of the summer in Morris Plains, is a moderately hot month, with an average temperature varying between 58.8°F (14.9°C) and 77.4°F (25.2°C). Morris Plains in June denotes a subtle temperature transition, adjusting from an average high of an agreeable 68.9°F (20.5°C) in May to a warm 77.4°F (25.2°C). Weather in June »

Weather in July

July, like June, in Morris Plains, New Jersey, is another warm summer month, with an average temperature varying between 83.7°F (28.7°C) and 65.7°F (18.7°C). July, known for its average high temperature of 83.7°F (28.7°C) and an average low temperature of 65.7°F (18.7°C), is the warmest month. For most parts of July, the heat index is evaluated at a hot 91.4°F (33°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Morris Plains, New Jersey, with an average temperature fluctuating between 64°F (17.8°C) and 81.5°F (27.5°C). Morris Plains starts August with an average high-temperature of a still warm 81.5°F (27.5°C), hinting at a minimal fluctuation from July. Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Morris Plains, New Jersey, with an average temperature fluctuating between 74.5°F (23.6°C) and 57.2°F (14°C). Transition into September subtly marks a drop in the average high-temperature, moderately moving from 81.5°F (27.5°C) in August to a still moderately hot 74.5°F (23.6°C). Weather in September »

Weather in October

October, like September, in Morris Plains, New Jersey, is another enjoyable autumn month, with an average temperature ranging between min 47.3°F (8.5°C) and max 62.2°F (16.8°C). The start of October signals a decrease in the average high-temperature, transitioning from a moderately hot 74.5°F (23.6°C) in September to a refreshing 62.2°F (16.8°C). Weather in October »

Weather in November

November, the last month of the autumn in Morris Plains, is also a fresh month, with temperature in the range of an average low of 36.5°F (2.5°C) and an average high of 50.5°F (10.3°C). The move into November indicates a reduction in the average high-temperature, down from October's comfortable 62.2°F (16.8°C) to a cool 50.5°F (10.3°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Morris Plains, New Jersey, with an average temperature varying between 29.5°F (-1.4°C) and 40.8°F (4.9°C). With the onset of December, Morris Plains's average high-temperature adjusts, receding from November's cool 50.5°F (10.3°C) to a cold 40.8°F (4.9°C). Weather in December »

Frequently asked questions

What is the coldest time of year?

The coldest time of the year is January, with temperatures averaging a high of 34.9°F (1.6°C) and a low of 22.5°F (-5.3°C).

What is the driest month?

The months with the least rainfall are January, February and September Rain falls for 8.3 days and accumulates 1.57" (40mm) of rain.

How much does it rain?

In Morris Plains, during the entire year, the rain falls for 157.9 days and collects up to 27.05" (687mm) of precipitation.

When does it snow?

January through May, November and December are months with snowfall.

How much does it snow?

Throughout the year, there are 24 snowfall days, and 9.72" (247mm) of snow is accumulated.

When is the lowest UV index?

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.

What is the most humid month?

The months with the highest humidity are February, October and December, with an average relative humidity of 80%.

What is the month with the least sunshine?

With an average of 4.6h of sunshine, February has the least sunshine of the year.

What is the snowiest month?

The month with the most snowfall is March, when snow falls for 5.2 days and typically aggregates up to 3.7" (94mm) of snow.

When is Daylight Saving Time (DST) in Morris Plains?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month in Morris Plains?

The least humid month is April, with an average relative humidity of 74%.

When it does not snow?

June through October are months without snowfall.

When are the longest days?

June has the longest days of the year, with an average of 15h and 6min of daylight.

When is the highest UV index?

The months with the highest UV index in Morris Plains are June through August, with an average maximum UV index of 6.

What month is the hottest in Morris Plains?

Morris Plains, New Jersey, experiences its highest temperatures in July, with an average peak of 83.7°F (28.7°C) and a low of 65.7°F (18.7°C).

What is the rainiest month?

July is the month with the most rainfall. Rain falls for 17.6 days and accumulates 3.19" (81mm) of precipitation.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 10.3h of sunshine.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 18min of daylight.

Average temperature
Morris Plains, NJ

Average temperature - Morris Plains, NJ

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (34.9°F).

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure
Morris Plains, NJ

Average pressure - Morris Plains, NJ

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
Morris Plains, NJ

Average wind speed - Morris Plains, NJ

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity
Morris Plains, NJ

Average humidity - Morris Plains, NJ

The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (74%).

Average rainfall
Morris Plains, NJ

Average rainfall - Morris Plains, NJ

The wettest month (with the highest rainfall) is July (3.19").
The driest months (with the least rainfall) are January, February and September (1.57").

Average rainfall days
Morris Plains, NJ

Average rainfall days - Morris Plains, NJ

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.3 days).

Average snowfall
Morris Plains, NJ

Average snowfall - Morris Plains, NJ

The month with the highest snowfall is March (3.7").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days
Morris Plains, NJ

Average snowfall days - Morris Plains, NJ

The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight / Average sunshine
Morris Plains, NJ

Average daylight / Average sunshine - Morris Plains, NJ

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days
Morris Plains, NJ

Average sunshine days - Morris Plains, NJ

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (10.9 days).

Average UV index
Morris Plains, NJ

Average UV index - Morris Plains, NJ

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover
Morris Plains, NJ

Average cloud cover - Morris Plains, NJ

The months with the most cloud cover are February, March and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).

Average visibility
Morris Plains, NJ

Average visibility - Morris Plains, NJ

The months with the highest visibility are January, February, March, April, July, August, October, November and December (6mi).
The months with the lowest visibility are May, June and September (5mi).

Morris Plains, New Jersey, USA

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